He said: “In both cases, the evolution of walking legs required ... Bellono “Although the details of how this happened in fish and humans are likely very different, we hope to learn general ...

Assumptions that may seem self-evident are not always accurate when it comes to the evolution of vertebrate brains.

They say the specimen captures a key moment in the evolution of the blood-pumping organ found in all back-boned animals, including humans. The heart belonged to a fish known as the Gogo ...